Effect of Overcoating with Dielectric Films on the Superconductive Properties of the High-Tc Y-Ba-Cu-O Films
- 1 March 1988
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 27 (3A), L381-383
- https://doi.org/10.1143/jjap.27.l381
Abstract
The high-T c Y-Ba-Cu-O superconductive thin films were coated with dielectric films of Nb2O5 and Al2O3 using an rf-magnetron sputtering technique. The coating with dielectric films lowered the zero-resistance temperature of the Y-Ba-Cu-O films. The Auger analyses for these overcoated Y-Ba-Cu-O films suggested that internal diffusion appeared between the Y-Ba-Cu-O films and the dielectric films. It was also found that the crystallinity of the Y-Ba-Cu-O films was degraded due to the overcoating of the dielectric films.Keywords
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